E NEW YORK s raIn 10己 +50 Depolarising hase Repolarising -O phase Resting statel Undershoot Resting state 50 E-100 Time Some of the cells(excitable cells)are capable to rapidly reverse their resting membrane potential from negative resting values to slightly positive values. This transient and rapid change in membrane potential is called an action potential
Action potential（动作电位） Some of the cells (excitable cells) are capable to rapidly reverse their resting membrane potential from negative resting values to slightly positive values. This transient and rapid change in membrane potential is called an action potential
E NEW YORK s raIn 10己 a typical neuron action potential +50 c Overshoot E 0 Negative after- Positive potential after-potential -70- Spike potentialAfter-potential
Negative afterpotential Positive after-potential Spike potential After-potential A typical neuron action potential
E NEW YORK s raIn 10己 Electrotonic potential(电紧张电位) Change of membrane potential (mv) Action potential m Stimulus as threshold Current Depolarizing Recording Membrane current electrode and omenta Hyperpolarizing 44 current e Fleshandbones com Davies et al: Human Physiology
Electrotonic Potential（电紧张电位）